From owner-freebsd-stable@FreeBSD.ORG Mon Apr 29 18:25:14 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id AE2BDE05 for ; Mon, 29 Apr 2013 18:25:14 +0000 (UTC) (envelope-from jdc@koitsu.org) Received: from qmta03.emeryville.ca.mail.comcast.net (qmta03.emeryville.ca.mail.comcast.net [IPv6:2001:558:fe2d:43:76:96:30:32]) by mx1.freebsd.org (Postfix) with ESMTP id 8C938169F for ; Mon, 29 Apr 2013 18:25:14 +0000 (UTC) Received: from omta20.emeryville.ca.mail.comcast.net ([76.96.30.87]) by qmta03.emeryville.ca.mail.comcast.net with comcast id Vom71l0031smiN4A3uRDwY; Mon, 29 Apr 2013 18:25:13 +0000 Received: from koitsu.strangled.net ([67.180.84.87]) by omta20.emeryville.ca.mail.comcast.net with comcast id VuRC1l00z1t3BNj8guRDNg; Mon, 29 Apr 2013 18:25:13 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id C7F5D73A1B; Mon, 29 Apr 2013 11:25:12 -0700 (PDT) Date: Mon, 29 Apr 2013 11:25:12 -0700 From: Jeremy Chadwick To: Adrian Chadd Subject: Re: [Solved] [UART] GPS 18-5Hz LVC and COM1 silence, OK on Linux though... Message-ID: <20130429182512.GA9896@icarus.home.lan> References: <517DB738.4060902@restecp.com> <517E9782.2050701@wenks.ch> <517EB559.3060200@wenks.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20121106; t=1367259913; bh=/9s6gLPEWLloL/xk9CCft32gm/UZCyEpeyZV7jI3MNk=; h=Received:Received:Received:Date:From:To:Subject:Message-ID: MIME-Version:Content-Type; b=kmryZXTDSFamoAAE5R2U78rvWt1XqlIVd485393J9MS8aIHrZiBJS49DqgMfSplSO hC1+jaJjmx3PjuzZe5FTygHJJHWr8ct0ZwUCIkJw6Ha+e02bb0PJl/1ccDigckHYmp rGADqzbpboFocH3nZOqYz2i2sYMlxINOSSDdRxwguRw9dDFx+QBSN+2aNICvxDlhb/ fMQFPhrKVdgBHB56Aek/PHWklPKTvwH7i3LgNQaZNTuO7f5QLMDibNCsw1rUmHpkCp Djd89VL/K1oqM9KwBDXHccxH6xgzbg5c71qJw20rSqlqHUSeWSqJMvzgk3Er3TE2Ji feiUGZFvIfbvQ== Cc: Fabian Wenk , freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Apr 2013 18:25:14 -0000 On Mon, Apr 29, 2013 at 11:14:38AM -0700, Adrian Chadd wrote: > On 29 April 2013 11:00, Fabian Wenk wrote: > > > Is there anything I can do to debug? > > I don't know. Unfortunately there's no active uart maintainer. Eh? I was under the impression Marcel Moolenaar was active and maintaining this code. He has alternate Email addresses if that one does not work. > That's why I was wondering if someone already knew about whether uart > kept underflow/overflow statistics. Based on what I can tell, it does not. It has the capability of detecting overruns, but there does not appear to be (based on a quick skim) any counter capability. I should note that this has been a long-standing issue with FreeBSD, re: whether ACPI or ISA should have control over serial ports (uart(4)). The road goes both ways -- what works for some people doesn't for others. If a person is having to throw in ACPI tweaks/overrides/hints to get this to work, someone should probably involve freebsd-acpi. I'll also point out that since the ACPI tables come from the BIOS/UEFI, it does not surprise people that BIOS maintainers often screw things up as well. Nothing on PC architecture is simple any more. Nothing. -- | Jeremy Chadwick jdc@koitsu.org | | UNIX Systems Administrator http://jdc.koitsu.org/ | | Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB |